Trifolium aureumPollich

large hop clover

WFO wfo-0000213947 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Trifolium aureum, photographed by Mark Apgar
fig. a Mark Apgar, CC BY 4.0 / 2022-06-11 / obs. 205223647
Trifolium aureum, photographed by pachips
fig. b pachips, CC BY 4.0 / obs. 205033118
Trifolium aureum, photographed by Erik Schiff
fig. c Erik Schiff, CC0 1.0 / obs. 205833316
Trifolium aureum, photographed by Mark Apgar
fig. d Mark Apgar, CC BY 4.0 / obs. 205222728
Trifolium aureum, photographed by Matt Pelikan
fig. e Matt Pelikan, CC BY 4.0 / obs. 204959702
Trifolium aureum, photographed by Steven Bodzin
fig. f Steven Bodzin, CC BY 4.0 / obs. 154154974
Trifolium aureum, photographed by evgeniq_benihanov
fig. g evgeniq_benihanov, CC BY 4.0 / obs. 163954832
Trifolium aureum, photographed by Cecil Smith
fig. h Cecil Smith, CC BY 4.0 / obs. 167012736

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Confused withby our own model

These are not lookalikes we guessed at. Each one is a species our identification model genuinely mistook for this plant, and how many times. The error rate is published.

Flowering n = 1,272 observations

Peak flowering in Jul, from 1,272 community-annotated observations worldwide. This is a global aggregate, not a forecast for your garden: the same species flowers on different dates in different hemispheres, and citizen-science records cluster near cities, at weekends, and in spring. Where a species has fewer than 30 annotated records we do not draw this chart at all.

Also published as 8 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Amarenus agrarius (L.) C.Presl
  • Chrysaspis aurea (Pollich) Greene
  • Trifolium agrarium L.
  • Trifolium aureum f. achtarovii (Urum.) Stoj., Stef. & Kitan.
  • Trifolium aureum subsp. achtarovii Urum.
  • Trifolium aureum var. achtarovii (Urum.) Kožuharov
  • Trifolium campestre C.C.Gmel.
  • Trifolium strepens Crantz

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.

We publish what we can source and we say so when we cannot. This page has no care advice, no toxicity claim and no native range, because we do not yet have those from a source we can cite.